<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#determining">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script src="support/test-common.js"></script>
<style>
.relpos {
  position: relative;
}
.anchor1 {
  anchor-name: --a1, --a2;
  width: 30px;
  height: 10px;
  background: orange;
}
.target {
  position: absolute;
  height: 10px;
  background: lime;
}
#target1 {
  width: anchor-size(--a1 width);
}
#target2 {
  width: anchor-size(--a2 width);
}
#target3 {
  width: anchor-size(--a3 width, 11px);
}
</style>
<body onload="checkLayoutForAnchorPos('.target')">
  <!--
    First two targets should find the same anchor via different names.
    Third target shouldn't find the anchor, as the name is invalid.
  -->
  <div class="relpos">
    <div class="anchor1" style="width: 30px"></div>
    <div class="target" id="target1" data-expected-width=30></div>
    <div class="target" id="target2" data-expected-width=30></div>
    <div class="target" id="target3" data-expected-width=11></div>
  </div>
</body>
